This essay describes an educational initiative that used environmentally themed (green) hip-hop to stimulate learning in an environmental science classroom. Students were then challenged to compose their own green hip-hop and their lyrics demonstrated skills that have thematic consistency around what is called a Critical Ecological Literacy (CEL). An analysis of more than 200 creative pieces collected from eight runs of this curriculum over four years shows that CEL can be used as a guiding concept for the creation of curriculum targeting urban areas and racially diverse learners. Several examples of this student-produced green hip-hop are shared to delineate elements of CEL that can help educators evaluate student learning as well as their own teaching materials.